Derek Nance's petition asked the "Call Me Maybe" singer to "denounce the Boy Scouts' policy banning gay youth and parents." Last month, the organization put off a decision on whether to lift that restriction, saying it needed more time to examine the "complexity of this issue."

"As an artist who believes in equality for all people, I will not be participating in the Boy Scouts of America Jamboree this summer," Jepsen wrote on Twitter early Tuesday. She went on to say that "I always have and will continue to support the LGBT community" and pledged to "stay informed on ... the ongoing battle for gay rights in this country and across the globe."

Nance's petition was also addressed to the band Train, which released a statement Friday saying it would perform at the Jamboree, "as long as [the Boy Scouts] make the right decision" about its membership policy.